Aqueous dispersion type acrylic pressure-sensitive adhesive composition and pressure-sensitive adhesive tape

An aqueous dispersion-type acrylic pressure-sensitive adhesive composition includes acrylic copolymer emulsion particles dispersed in an aqueous medium. The acrylic copolymer emulsion particles has a ratio (ANIN)/(ANSUR) of 1 or more, wherein (ANIN) is an amount of acid groups in the acrylic copolym...

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Bibliographic Details
Main Authors MORINO AKINORI, KATO NAOKI
Format Patent
LanguageEnglish
Published 12.03.2013
Subjects
ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE
ADHESIVES
CHEMISTRY
DYES
METALLURGY
MISCELLANEOUS APPLICATIONS OF MATERIALS
MISCELLANEOUS COMPOSITIONS
NATURAL RESINS
NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL
PAINTS
POLISHES
USE OF MATERIALS AS ADHESIVES
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Summary:An aqueous dispersion-type acrylic pressure-sensitive adhesive composition includes acrylic copolymer emulsion particles dispersed in an aqueous medium. The acrylic copolymer emulsion particles has a ratio (ANIN)/(ANSUR) of 1 or more, wherein (ANIN) is an amount of acid groups in the acrylic copolymer emulsion particles, and (ANSUR) is an amount of acid groups on the surfaces of the acrylic copolymer emulsion particles, (ANIN) and (ANSUR) being calculated from a titration curve of potentiometric titration performed by adding an inorganic base solution to an acidic sample dispersion solution containing the acrylic copolymer emulsion particles dispersed in ion exchange water. A pressure-sensitive adhesive tape which strongly adheres to an adherend and has excellent removability can be formed using the aqueous dispersion-type acrylic pressure-sensitive adhesive composition.
Bibliography:Application Number: US20090934886